phosphorites
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英 
例句
Uranium is frequently enriched by sorption or chemical combination in shales , lignites and phosphorites .
铀经常为页岩,泥炭和磷块岩所吸附或化学结合态而富集。
Migrating Mode of REE in Process of Phosphorites Weathering in Zhijin, Guizhou
贵州省织金磷块岩风化过程中稀土元素迁移性状探讨